“What's the best backup battery we need something to keep a 240 watt continuously running air mattress for a hospice patient running incase power goes out. We would like at least 7 hours.”
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At 240 watts you would get around 11 minutes of runtime using this product. You will need a generator if you need that much runtime.
Sorry, there was a problem. Please try again later.APC has UPS sizing calculators that allow you plug in load and uptime to determine the requirement. Go to their website and search for "UPS selector". Using 240watts load for 7 hours puts you in the 750-1000VA range. The 750VA UPS's require addition battery packs. Is the 240watts coming from the air power supply label or are you measuring the actual draw at the receptacle, (Kill A Watt or similar meter?) If you get a better number for the electrical load, you can plug it into the tool to see the requirements. Depending on the climate/season/location, etc., be prepared for heat being generated by the UPS running on battery. This will further reduce the runtime.
Sorry, there was a problem. Please try again later.Thank you for your inquiry. At 240 watts you would get around 11 minutes of runtime. We recommend a generator if you need that much runtime. To get that much runtime from one of our UPSs you would want to go with one of our extended run UPS. An example of one is SMX750 plus 2 SMX48RMBP2U. Please contact an APCbySchneider sales team at your earliest convenience and we can help recommend the best UPS for your needs. We offer email and chat services through our support site and you may also contact us directly at 800-800-4272.
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